class_docstr: [summary]
  
  Args:
    test {[type]} -- [description]
docstr: Test create file.
docstr_tok: ["Test","create","file","."]
code: def test_create_file(self):
      """Test create file."""
      # Setup and check preconditions.
      file_name = self._path_to("testfile")
      if tf.io.gfile.exists(file_name):
          tf.io.gfile.remove(file_name)
      # Create file.
      with tf.io.gfile.GFile(file_name, "w") as w:
          w.write("")
      # Check that file was created.
      self.assertTrue(tf.io.gfile.exists(file_name))
  
      tf.io.gfile.remove(file_name)
  
imports: import os
  import subprocess
  import sys
  import pytest
  import tensorflow
  import tensorflow_io
label_desc: Use image node_id 5 for calling the AZFSTestBase obj's underlying member method code with example usage: obj.test_create_file() without return types